WatchWebStructure_p.html can not display the structure of a https website as it doesn't show references using another protocol than http on default port.

Steps To Reproduce

- crawl a web site redirecting from http to https, such as fr.wikipedia.org
- open the /WatchWebStructure_p.html page and eventually fill the 'host' field
- structure is empty, however HostBrowser sucessfully list pages and webstructure.xml?about=https://fr.wikipedia.org [^] sucessfully lists references